Super Tough Anti‐freezing and Antibacterial Hydrogel With Multi‐crosslinked Network for Flexible Strain Sensor

Abstract Addressing the diverse environmental demands for electronic material performance, the design of a multifunctional ionic conductive hydrogel with mechanical flexibility, anti‐freezing capability, and antibacterial characteristics represents an optimal solution. Leveraging the Dead Sea effect and the strong hydrogen bonding, this study exploits the CaCl 2 and the abundant hydroxyl groups in phytic acid (PA) to induce chain entanglements, thereby constructing a complex, multi‐crosslinked network. Furthermore, PA and ternary solvent systems (CaCl 2 /Glycerol/H 2 O) synergistically impart excellent mechanical strength, toughness (with tensile strength of 8.93 MPa, elongation at break of 859.93%, and…

• NK
  National Key Research and Development Program of China

  Award: 2023YFB3810100
• FR
  Fundamental Research Funds for the Central Universities

  Award: 2023YGZD03